Whiffletree.



Patented Aug.- 6, 190|.

- w. H. sPlLLMAN 0 A. E. noAcH.

WHIFFLETBEE.

(Application led Nov. 9, 1900.)

(No Model.)

WITNESSES l INI/vrom )7, Ey

1N: bums PETERS co. Mo'rauwo. wAsHmuTou, n. c.

UNITED STATES WILLIAM H. SPILLMAN AND ADOLPHUS E. ROACH, OF LEAMINGTON,CANADA.

WHIFFLETREE.

SPECIFICATION forming part of Letters Patent No. 680,006, dated August6, 1901.

Application filed November 9, 1900. Serial No. 351948 (No model.)

T0 a/ZZ whomt't may concern.-

Be it known that we, WILLIAM H. SPILL- MAN and ADOLPHUS E. ROACH,subjects of the Queen of Great Britain, residing at Leamington, in theProvince of Ontario, Canada, have invented a certain new and usefulImprovement in Whiflletrees; and we declare the following to be a full,clear, and exact description of the same, such as will enable othersskilled in the art to which it pertains to make and use the same,reference beinghad to the accompanying drawings, which form a part ofthis specification. I

This invention relates to whililetrees, doubletrees, and neck-yokes andsimilar articles used for draft purposes, and has for its object animproved construction of a tubular whiifletree, doubletree, neck-yoke,or similar article made from stamped sheet metal, so bent and folded asto produce an article stron g, durable, and light.

In the drawings, Figure 1 is a perspective of the whiflietree. Fig. 2 isa cross-section at the middle point of the whiletree at the line a: a:of Fig` l. Fig. 3 is a cross-section at the end. Fig. 4 is a perspectiveshowing the middle hoop. Fig. 5 is a longitudinal section through themiddle hoop.

The article,whifietree, doubletree, or neckyoke is made in two parts,which are held together by a middle hoop and by end hoops. The partA ismade from sheet metal stamped to a concave form, with the edges a bturned in, so that the half A of the completed article has the shapeindicated, the middle part being in cross-section about a half-circle ora half-oval, with inturned flanges, and the ends being in cross-sectionhalf-circles, with an inturned flange from each side. The half part B isof the same shape and construction; but in assembling the two they areplaced together to cause the complete structure to assume the shape of atube having an enlarged middle part somewhat flattened, and preferablyhaving what may be termed the front side or side opposite the draftattachment substantially straight, while the side that is toward thedraft broadens out toward the middle of the article.

Around the middle of the article is placed a split hoop C, havingbolt-lugs arranged one on each side of the split. The ring C is concavedfrom end to end, so that the middle part of the ring has a somewhatlarger diameter than the end parts, and the end parts of the ring are ofa size to engage closely around the body of the whiffletree when thelugs c and c' are brought together and secured together by bolts orrivets through the holes d. The split concaved hoop holds the parts Aand B firmly together and is itself prevented from slipping endwise bythe contracted ends, which engage around the whilfletree at each side ofits bulged middle part.

At each end of the article is placed a conical draft ring or hoop of asize to engage snugly around the ends of the two parts A and B, andtheend edges of the parts A and B are upset or riveted over the outer endof the ring e and hold the ring from escaping endwise from the article.The rings e and e are furnished with draft-hooks or tug-hooks, and thearticle is arranged to be held at its middle point by a boltpassingthrough the hole f or, in case it is used for a neck-yoke, by a ringpassing through the hole f, or the hole f may itself be made largeenough to serve as the ring. K

The two halves of the article may be soldered or brazed together alongthe seams g; but this is not essential to its construction, as the hoopsor rings around the middle part and around the ends hold the partssecurely in place.

1. A new article of commerce, consisting of sheet-metal sections stampedto a concave form having inturned flanges and bound together by hoops,substantially as described.

2. An article for draft purposes consisting of sheet-metal sectionsstamped to a concave form and each section being provided with inturnedflanges, binding-hoops provided with draft appliances securing thesections' together, substantially as described.

In testimony whereof we sign this specilication in the presence of twowitnesses.

WILLIAM H. SPILLMAN. ADOLPHUS E. ROACH. Witnesses:

CHARLES F. BURTON, JOHN N. GOODRICH.

